AP PSYCHOLOGY

Detailed explanation-1: -Extinction refers to the reduction in responding that occurs when the conditioned stimulus is presented repeatedly without the unconditioned stimulus.

Detailed explanation-2: -Extinction is the decrease in strength of a learned behavior when the conditioned stimulus is presented without the unconditioned stimulus (in Pavlovian learning), or when the behavior is no longer reinforced (in operant or instrumental learning).

Detailed explanation-3: -Extinction is the gradual weakening and disappearance of a conditioned response.

Detailed explanation-4: -What is extinction? Extinction is the permanent end to the existence of a species. Through the vast expanse of geological time, extinction has been the fate of most kinds of living things on earth. The background rate of extinction has been more or less constant at about one species per million each year.

Detailed explanation-5: -Extinction is a behavioral phenomenon observed in both operantly conditioned and classically conditioned behavior, which manifests itself by fading of non-reinforced conditioned response over time.